Comparison

U.S.A. Constitution vs Mercurius AI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

U.S.A. Constitution

Explore and understand U.S. law with this app. It provides access to the Preamble, Articles, and all 27 Amendments of the Constitution, along with overviews and news. Detailed explanations help users delve deeper into constitutional law.

Highlights
  • Preamble to the Constitution
  • Articles of the Constitution
  • 27 Amendments (including Bill of Rights)
  • Constitution Overview and News
  • Detailed Explanations and Interpretation
Features
Read full description

U.S. Constitution App components: - Preamble to the Constitution: The Preamble is the introductory statement to the Constitution that sets forth the general principles and purpose of the document. - Articles of the Constitution: The Constitution consists of seven articles. - Amendments to the Constitution: There are 27 amendments to the Constitution, with the first ten collectively known as the Bill of Rights. - Constitution Overview and News; - Detailed Explanations and Interpretation: for anyone looking to delve deeper into constitutional law.

About

Mercurius AI

This AI literacy tutor helps you understand and use artificial intelligence critically and responsibly. It guides you through complex AI concepts with interactive questioning and direct explanations, fostering independent thought rather than providing instant answers.

Highlights
  • Learn AI concepts: models, prompting, bias, hallucinations
  • Practice Socratic, Discussion, and Debate thinking
  • Analyze images with AI
  • Auto-generated quizzes and session reports
  • Bite-sized AI literacy lessons
  • Comprehension gate for direct explanations
Features
Read full description

Mercurius AI is a tutor for understanding artificial intelligence — how it works, where it goes wrong, and how to use it without letting it think for you. It is built around verification and reflection. In Socratic chat, the default, it guides with questions instead of handing over answers. TWO COURSES Choose one when you start. You can switch any time, and each course keeps its own progress. BASICS — new to AI chatbots? Start here. Five units and 18 short lessons, one small step at a time: • Meet AI chatbots • Your first conversations, safely • Getting good answers • Everyday tasks • Using it wisely on your own Each idea is taught plainly. You practice by writing real messages, and the tutor does the task for real, the way any chatbot would, then points out what made it work. You learn what never to share, how to spot fake calls that sound like family and other scams that use AI, and when to ask a person instead about health, money or legal questions. A lesson is done once you've practiced and answered its check; the four safety lessons need the right answer. Every Basics lesson ends with something to try today, and you can make the words bigger. DEEP DIVE — already use AI? Learn how it works. Eight units and 35 short lessons take you from "what happens when you type a prompt" to agents and what comes next: • How AI Actually Works • Bias & Fairness • AI in Society • Prompt Engineering • Ethics & Alignment • Spotting AI: Deepfakes & Synthetic Media • Using AI Well • The Frontier: Agents & What's Next Lessons teach one idea at a time and check your understanding with a question before moving on. A Deep dive lesson is marked complete when you show you understand its objective — not when you reach the end of the text. Unit checks tie each unit together. In Lesson 1, an interactive card shows a sentence turning into tokens, then numbers, then a place on a map of meaning. In both courses, lessons stream in short beats with KEY IDEA and EXAMPLE cards. Quick checks are multiple-choice questions you answer with a tap; some Deep dive checks ask for your own words. THREE WAYS TO TALK • Socratic (the default): the tutor asks questions that lead you to the idea. • Discussion: reflect on a topic and get a scored response on your reasoning. • Debate: take a side and argue it while the tutor argues the other side. ALSO • Attach a photo to a message — a screenshot, a diagram, a suspicious image — and talk it through. • Earn a certificate: pass all eight Deep dive unit checks, or finish all 18 Basics lessons, then print it or save it as a PDF. The name you type on it is kept on the device and never sent to our server. • Opt-in reminders, and a streak on the Deep dive, help you keep the habit going. • Long-press any reply to report it. • The tutor is not a counselor. A setup screen lists crisis lines. If our server reads a unit-check answer, or a chat you ask to be quizzed on, as a crisis, that activity stops and shows how to call or text 988 or text HOME to 741741. HOW IT WORKS Responses are generated by Claude, Anthropic's AI model, through Mercurius's own server. Like any AI, it can be wrong — checking claims is part of the curriculum, and the app says so plainly. There are no accounts and no ads. Your session is an anonymous id. Our server keeps your messages for 90 days and photos for 24 hours, then deletes them. Deleting the app doesn't delete them, but you can delete them sooner in Settings → Delete my data & start over. The privacy policy at trymercurius.com/privacy has the details. WHO IT'S FOR Students 13 and up, and anyone who wants to use AI well rather than passively. The Basics course is written for anyone 13 or older who is new to AI chatbots. Mercurius AI is built by the Mayo AI Literacy Club, a student club.

Screenshots

U.S.A. Constitution4 screens
Mercurius AI4 screens

Verdict

The call

The clearest difference is review sentiment: Mercurius AI at 100% against U.S.A. Constitution's 0%. Mercurius AI also leads on rating (5.0 vs 2.0) and ads (none vs shown). U.S.A. Constitution's advantage is iOS requirement (13.0 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Mercurius AI holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: Mercurius AI has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of U.S.A. Constitution's written reviews are positive against 100% of Mercurius AI's.

UpkeepUpdate frequency

U.S.A. Constitution ships an update every 6 weeks, Mercurius AI every 2 months. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

Scorecard6 real differences · 4 level
U.S.A. Constitution versus Mercurius AI: the parameters behind the verdict, then further details
ParameterU.S.A. ConstitutionMercurius AI
PriceFreeFree
Rating2.0 (1 ratings)5.0 (5 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings15 — better
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size55 MB17 MB
Age rating4+12+
DeveloperOvidiu LupKEVIN NICHOLAS CHRISTENSEN

Customer experience

U.S.A. Constitution

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Mercurius AI

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

U.S.A. Constitution

No in-app purchases

None

Mercurius AI

No in-app purchases

Questions

Is U.S.A. Constitution free?
U.S.A. Constitution is free to download, with no in-app purchases.
Is Mercurius AI free?
Mercurius AI is free to download, with no in-app purchases.
Which has better reviews, U.S.A. Constitution or Mercurius AI?
Mercurius AI is rated higher. U.S.A. Constitution averages 2.0 out of 5 from 1 ratings, while Mercurius AI averages 5.0 from 5 ratings.
Do U.S.A. Constitution or Mercurius AI have ads?
U.S.A. Constitution shows ads; Mercurius AI does not.
Which is updated more often, U.S.A. Constitution or Mercurius AI?
U.S.A. Constitution ships an update every 6 weeks, and Mercurius AI every 2 months. Most recently, U.S.A. Constitution was updated on October 24, 2026 and Mercurius AI on October 31, 2026.

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